Window construction



Oct. 27, 1925. 1,558,648

L. A. THOMAS WINDOW CONSTRUCTION Filed sept. 25, 1923 dttarrzqy.

lPatented Oct. 27, 1925.

`LOUIS AkTHoMA-syorincsanonnssg'leamronmao -XVINCDVW .1 CONSTRUCTIN.' i

Application filed-September 25,1923. sei-iai no eaeea Be it -known that l, (Louis A. Il "noiras. y a citizen ofgthe United v Stat-es, iresiding at Los Angeles, in the county-ofglfios Angeles and Stategoff California,haveinventedv a new and useful ylllindow.Ccnsti'uction, of which a specification isset :forth below:

In `this specification, and the accompanying drawing, I shall :describe.andshow a preferred formof my` inyention,an dI specifi cally mention 4certainof'its :more important objects. I do notV mitfmyseltto'theifornis disclosed, since narieuschanges and adaptations may?v be made-,therein without departingvfroni thewessence-of myinvention as hereinafter claimed; and Vobjects and advantages, other than, those specifically mentioned, are included within its scope.

My. invention .relates to .window construction and its salient objects are: First, to provide aidoublehung window permitting ot100%openingfgsecond,to. avoid the"A necessity -for using counter-weightsforproviding space jfor ythis purpose; third, fte-afford facilities for nsingasingl-e runwayfor both sash,` of the window, soas to permitV ofiin- .stallingthe latter lin relatively, thin walls; i'ourth, to furnish men-ns for, 1nalgigiug` such-a window Vwaterftight and 4drafttight' when closed; and, fifth, to accomplishlth'e,aboye objects'by asiinple and ,relatively inexpen- 'sivey construction thatjisadapted .to the jreyquireinents of the,buildingarts.

My objects are attainediin thennann'cr illustrated in the accompanying drawing,'in which;-k

Figure l is a Vertical cross section of a complete installation of my improved window construction, the window being fully closed;

Figure 2 is a vertical cross section of' the lower portion of the above construction with the window fully open, this View being drawn to a larger scale;

Figure 3 is a sectional plan view of one side of the construction, taken on the line 3-3 of Fig. l and drawn to the saine scale as Fig. 2; and

Figure' 4 is a sectional elevation of one side of the construction, taken on the line lof Fig. l, and drawn to the same scale as Figs. 2 and 3.

Similar reference numerals refer to simi-k In my construction the upper sash o and 'I`lius, whenthe upper sash is 'lyaised thelbots toni sash is lowered, and 'Viceversa IBeing closely lalike in weight, each: sash }cou`nter balances the other, fand"-theyfwill remain in equilibrium inany positioiii The framing of the [window opening; as indicated in Fig. l, is so `arranged thatfjthe upper sash can disappear in the ifal'l above the opening. Sirf arly, thejlower sash can disappear in the u all "below theQopening.

Thefpulley stiles, ofwhich oneissliown yat l0,`arejprovided with verticalbeadsll, and

these, in cooperatioi'i'-with ,the inner and outer jambs and 13, provide vslots l at. lfor the two parts ofthe'sashehainsto ywork in. These beads and ljambs` also Aserve guides 'for vthe sash; The" beads` are not continuous, but arelfcut away where necessary to' provide spacefor the installation of 'the sash pulleys and 'the'.piyoted sillthat will be describedf `The meeting rails4 of the sashY hare."adapted to' overlap when the window is closed and I p'refertoshape theV rail l5 of thelower sash as shown in Fig. `l, with a dripI head1 16 spaced-from the sash.

'Below 'thewindoiv opening myl constructionA provides a pivoted metal st-ill adapted for retraction into a space 17 below stool 18, when the window is open, and for making a weather-tight joint between the lower sash and outer fixed sill 19 when the window is closed. This pivoted sill comprises a curved apron 2O with an upwardly extending flange 21 at its rear, an upwardly extending flange 22 at each end, and a central downwardly extending fiange 23 beneath it. At each end there is a downwardly extending arm` 2l by means of which this sill is pivotally mounted upon pivot plates 25 attached to the stiles of the window frame. i

Intermediate the ends of the pivoted sill is a web 26 into which the operating rod 27 is hooked.- This rod extends through apron 2S and has a convenient terminal 2S) for operating it. A compression spring 30 su lli) rounds the operating rod and tends to force the pivoted sill outward when the window is closed as in F ig. 1.

In order to open the window the rod 27 is pulled outward from the apron and the pivoted sill is drawn backward thereby into space 17 as yshown in Fig. 2. The lower sash may then be lowered. When this sash is raised again to the closed position the spring forces the pivoted sill outward and etl'ects a weather-tight closure, the lower ends of jambs 13 being recessed at 31 to accommodate the end flanges of the pivoted sill.

I desire to point out that my construction requires the use of but two sash pulleys and two chains :for a double hung window, and that the usual counterweights are completely eliminated. I also Vwish to emphasize its adaptability for thin walls and the fact that it permits of a full 100% window opening. e

I wish to be understood that the use of the word chains in the appended claims signifies and includes such obvious equivalents as cords, wires7 or bands, known in this art.

I claim as my invention:

1. IVindow construction comprising; op-V posed sashes, vertically slidable in lopposite directions, and suspended at each sideoi the window by a single chain over a pulley that is perpendicular to the sash plane; and sash pockets above and below the sashes; said pulleys and chains being recessed in the sash guideways to permit free movement of the upper sash; and the sashes having meeting rails adapted for mutual rabbeted enga-gement.

2. Vindow construction comprising; opposed sashes, vertically slidable in common guideways in opposite directions, and suspended at each side of the window by a single chain over a pulley that is perpendicular to the sash plane; and sash pockets above and below the sashes; ysaid pulleys and cha-ins being recessed in the sash guideways to permit free movement of the upper sash; and the sashes having meeting rails adapted for mutual, rabbeted engagement and for shedding water outside the plane of the sashes.

3. Window construction comprising; opposed sashes of substantially equal weight,

vertically slidable in common guideways in sash lowerable into a pocket; and a pivoted sill having upwardly extending flanges at its ends and inner side, adapted to swing outwardly below said sash to intern the bottom edge thereof and make a weather-tight closure between it and the stationary sill; said pivoted sill being mainly concealed within the window casing and adapted ior operation by means extending inwardly therethrough. v

5. lindow construction comprising; a sash lowerable into a pocket; and a pivoted sill having upwardly extending flanges at its ends and inner side; and spring-constrained to swing outwardly below said sash to intern Vthe bottom edge thereof and make a weather-tight closure between it and the stationary sill; said pivoted sill being mainly concealed within the window casing and adapted for retraction by means of a pull rod extending inwardly therethrough.

Louis A. Ti-ioMAs. 

